Sole-pressing machine



Aug. 14, 1923.

G F STEWART SOLE PRESSING MACHINE Filed April 13 1920 i? w in m h a a $1 fizz/awn Patented Aug. 14-, 1923.

litres sires "GEORGE F. STEWART, OF SWAMPSOOTT, MASSACHUSETTS, ASSIGNOB TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW? JERSEY, A CORPORATION OF NE'VV JERSEY.

SOLE-PRESSING MACHIIJE.

To all whom it may concern:

Be it known that I, Gnonen F. STEWART, a citizen of the United States residing at Swampscott, in the county 01 Essex and State of h Iassachusetts, have invented certain new and useful Improvements in Sole- Pressing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to sole press ing machines and more particularly to machines of this type employed for laying the 'outsole of a welted boot or shoe prior to its permanent connection with t 1e shoe. 1 Machines of this type are generally constructed with twin jacks and sole laying forms in order that the sole laying operation may be carried on continuously, being under pressure when the second is being removed from the machine.

It is the object of the present invention to reorganize and improve the operating mechanism of this type of machine by which the sole laying pads are moved into and out of pressing position.

lVith this object in view the several features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, theadvantages of which will be obvious to those skilled in the art from the following description.

The accompanying drawing illustrates a front elevation partly in section of a sole laying machine embodying the new features of the invention.

The sole laying machine shown in the illustrated embodiment of the invention comprises two sets of shoe supporting ache and cooperatingsole laying pads. Separate and independent mechanism is provided for initially moving each pad into engagement with the sole of a shoe supported upon the jack, and in addition a common actuating mechanism serves when set into operation to impart an upward movement of predetermined extent to the pad which has been moved into engagement with the shoe sole, and a corresponding downward movement to the opposite pad to release the shoe under pressure. ,Thereaiter the machine is automatically stopped with one pad under pressure andthe second pad in a position of one shoe clearance, as shown, to permit the removal of the completed shoe and its replacement by another while the first shoe remains under pressure. This type of machine is disclosed and clearly described in the patents to Davenport, No. 980.272, dated October 3, 1909, and No. 1,066,473, dated July 8, 1913.

The sole laying machine comprises duplicate shoe supporting jacks indicated at lo, each having the usual heel post 16, and toe rest 17 relatively movable toward and from one another, and flexible sole laying pads 18, each mounted upon a series of supports 19 carried within a pad box 20. Each pad box is pivotally supported at opposite sides upon slides which move upon vertical standards 27. The initial upward movement of each pad to seat the pad against a shoe sole is imparted by an elevating cam 30 fulcrumed at 31 and connected with a treadle through a link having a counterweight 35 to partially balance theiwcight of the pad box and connectedparts.

Vhen the sole laying pad has been elevated into a position in engagement with the shoe sole to be put under'pressure, or into approximately the position of the right hand iad shown in the drawing, the operation of the power actuated mechanism is initiated to impart a movement of predetermined extent to this pad box in an upward direction and to remove the opposite pad from engagement with the sole. F This is accomplished by depressing either one of two treadle members 40 and 41 mounted upon opposite ends of a rock shaft 43 which carries an arm iti operating to clutch the shaft 45 with the drive pulley 46 in the manner clearly disclosed in the patent to Davenport No. 930, 272, above referred to. The rotation of this shaft serves to straighten a pair of toggle links 47 and 48 which are connected with the slides 25 through a one direction clutch indicated generally at 50. As will be oi served upon referring to the drawing the shaft 45 is provided with a driving pinion 52 which meshes with a large gear 54 mounted upon a shaft 55 carrying an eccentric This eccentric is provided with a strap 57 pivotally connected at 58 with a connecting rod 60 which is slotted at 62 to embrace the shaft The toggle link 48 is in the torn: of a bell crank having a long arm mounted upon a fixed pivot 64 at the lower end and pivotallyconnected with the rod 60 at 65 and with the toggle link 4-7 at 66. This construction serves to move the toggle into the position shown at the right of the drawing upon rotating the shaft 4E5. When the toggle has been moved into this position to elevate the pad and place the shoe sole under pressure, the shaft l5 is automatically disconnected from the drive pulley in the usual manner.

In order that both sole laying pads may be conveniently operated by the sameactuatmg mechanism in such a manner that when one sole laying pad is in pressing position the second shall be in a position of clearance to permit the removal of the shoe, connections are provided for operating both sole laying pads through the shaft 45 and connected mechanism. To this end the connecting rod is extended outwardly beyond the pivotal connection 65, as shown clearly in the drawing, and is connected at its outer end with a lever through a link 72. The lever 70 is fulcrumed centrally at 7a upon the machine frame and is in turn connected at its opposite end with the toggle links 76 and 77 through a. connector link 78. This connector link, as indicated, is pivotally con nected with one arm of the toggle link 77 which is in the form of a bell crank having the second toggle link 76 connected thereto at 80. It will be observed that with this construction a simple and eflicient mechanism is provided for alternately raising and lowering the two pads with one pad under pressure while the second is moved into a position of clearance and for thereafter stopping the machine with the pads held in these respective positions, at the same time permitting the two pads to be independently adjusted with respect to the particular shoe engaged by each pad.

It will be observed that the interconnected toggles bend in a vertical plane which is parallel to the front of the machine and which passes through both shoes. The movement in that plane of the mechanism for operating the pads is distinctly advantageous; the absence of operating parts between the operator and the vertical plane in which the pads operate permits him to stand closer to the pads without risk of injury and facilitates his operation of the machine.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be changed or modified without departing from the broader features of the invention.

The invention having been described, what is claimed is:

1. A sole pressing machine comprising two shoe supporting jacks and cooperating pressing pads, a manually operated cam and.

connected mechanism for initially moving each pad into engagement with the sole of a shoe supported upon the jack, a toggle connected with each sole laying pad, a single power operated eccentric and connections between the eccentric and the two toggles to simultaneously straighten one toggle and break the second toggle to move one pad into pressing position and the second pad out of pressing position.

2. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, a cam and connected mechanism for initially elevating each pad, a toggle con nected with each pad for imparting a movement of predetermined extent to the'pad, an eccentric, a rod connecting the eccentric with one toggle, and connections between the eccentric rod and the second toggle for causing the sole laying pads to be simultaneously moved in opposite directions by the eccentrio.

3. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, mechanism for manually moving each pad into engagement with the sole of a shoe supported upon the jack, a toggle connected with each pad for imparting a movement of predetermined extent to the pad, and power actuated mechanism including a single operating member connected with the knees of both toggles for simultaneously moving the two pads in opposite directions.

a. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, separate and independent treadle mechanisms for initially moving each pad into engagement with a shoe sole, power operated mechanism for imparting amove ment of predetermined extent in opposite directions to both pads, a rock shaft for initiating the operation of the power operated mechanism and a pair of treadles connected to the rock shaft and supported adjacent the two first mentioned treadles in order that a single movement may initially elevate one pad into engagement with the shoe sole and thereafter by the depression of the adjacent power treadle move one pad to apply pressure to the shoe sole and the other pad in a direction to relieve the pressure.

5. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, a toggle connected with each pad. an eccentric, an eccentric rod connecting the eccentric with one of the toggles and connections between the eccentric rod and the second toggle including a pivoted lever and links connected to opposite ends to cause the two toggles to move in opposite directions upon a rotation of the eccentric to simultanelously depress one pad and elevate the ot 161.

6 A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, mechanism for moving parting amovement of predetermined extent to the pad, the toggles bending in substantially the same plane, and power actuated mechanism for operating the toggles to move the pads simultaneously in opposite directions. 7

'7. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, mechanism for manually moving each pad into engagement with the sole of a shoe supported upon the jack, a

toggle connected with each pad'for impart ing movementof predetermined extent to the pad, power-actuated mechanism for op erating one of the toggles and a connection between the knees of the toggles constructed and arranged to cause the operation of one from the other.

8. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, mechanism for manually moving each pad into engagement with the sole of a shoe supported upon the jack, a toggle connected with each pad for imparting a movement of predetermined extent to the pad, power actuated mechanism for operating one of the toggles and a connection between the knees of the toggles constructed and arranged to cause the operation of one from the other to move the two pads simultaneously in opposite directions.

9. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads. mechanism for manually moving each pad into engagement with the sole of a shoe supported upon the jack, a toggle connected with each pad for imparting a movement of predetermined extent to the pad. and mechanism between the toggles for causing dependent operation of the toggles.

10. A sole pressing machine comprising two shoe supporting jacks and cooperating sole laying pads, mechanism for manually moving each pad into engagement with the sole of a shoe supported upon the jack, a toggle connected with each pad for impart ing a movement of predetermined extent to the pad, and a connecting mechanism comprising an element pivotally related to the toggles for causing them to move the pads simultaneously in opposite directions.

11. In a sole pressing machine, two mechanisms each comprising a pressing pad and a co -operating shoe supporting jack and means for effecting relative sole pressing movements of the said parts in alternation in the two mechanisms, comprising a toggle in each mechanism, the toggles being con nected at points substantially coincident with their knees so that the straightening of one bends the other.

1:2. In a sole pressing machine, two mechanisms each comprising a pressing pad and a co-operating shoe supporting ack and means for effecting relative sole pressing movements of the said parts in alternation in the two mechanisms, comprising a toggle in each mechanism, the toggles being constructed and arranged to bend in the same plane, and being interconnected so that the straightening of one bends the other.

13. In a sole pressing machine. two mechanisms each comprising a pressing pad and a co-operating shoe supporting jack, arranged to hold two shoes, and. means for effecting relative sole pressing movements of the said parts in alternation in the two mechanisms, comprising a toggle in each mechanism, the toggles being constructed and arranged to bend in a plane containing the longitudinal axes of both shoes, and being interconnected so that the straightening of one bends the other.

14. In a sole pressing machine, two mechanisms each comprising a pressing pad and. aco operating shoe supportingjack and means for effecting relative sole pressing movements of the said parts in alternation in the two mechanisms. said movements being of substantially uniform compressive effect, irrespective of the thickness of the work, comprising a toggle in each mechanism, the toggles being constructed and ar ranged to bend in the same plane, and being interconnected so that the straightening of one bends the other.

15. In a sole pressing machine, two jacks and two pressing pads arranged to cooperate with the jacks to operate on shoes supported on the jacks, the jacks being arranged to hold the shoes with their longitudinal axes approximately in a vertical plane, and means for operating the pads comprising a member cooperating with the pads through pivotal connections to effect simultaneous movements of the pads in opposite directions when one of them is operated, said member moving in said vertical plane.

16. In a sole pressing machine, two mechanisms each comprising a pressing pad and a cooperating shoe supporting jack, and means for alternately effecting relative sole pressing movements of the associated pad and jack in the two mechanisms comprising an operating member connected with one of themechanisms and a second member directly below the jacks having pivotal connections with both mechanisms and being arranged to cause reverse operation of the other of the mechanisms when the firstnamed mechanism is operated, the said second member being arranged to have no component of its movement perpendicular to a vertical plane passing through the jacks.

17. In a sole pressing machine, two mechanisms each comprising a pressing pad and a cooperating shoe supporting jack, and means for alternately effecting relative sole pressing movements of the pad and jack in the two mechanisms comprising an operating member connected with one of the mechanisms and a second member pivoted on the frame having pivotal connections with both mechanisms and being arranged to cause reverse operation of the other of the mechanisms when the first-named mecha nism is operated, the pads and jacks being arranged to support the shoes with their longitudinal axes approximately in a single vertical plane parallel to the front of the machine, and the said second member being arranged to turn in the said vertical plane.

18. In a sole pressing machine, two

mechanisms each comprising a pressing pad and a cooperating shoe supporting jack, and means for relatively moving each pad and its coope 'ating jack into pressure exerting position; a power operating device connected with one of said means, and a member located beneath the pads pivotally connecting both of the mechanisms and arranged to cause simultaneous movements of pressure in one mechnism and of release in the other mechanism. 7

19. In a sole pressing machine, two mechanisms each comprising a pressing pad and a cooperating shoe supporting jack, two devices each of which cooperates with one of said mechanisms for effecting relative sole pressing movements of the pads and jacks, a member pivotally connecting the two devices, located and moving in a vertical plane passing through the jacks and arranged to cause simultaneous operation of the devices in opposite directions, and power operated means for operating the said member.

GEORGE E; STEWART. 

